Boiler-cleaner



No. 624,627. Patented May 9, l89.l V. CLARK.

BOILER CLEANER.

(Application led May 14, 1898.) (No Model.)

mn @u UNiTnn STATES PATENTV OFFICE.

VALENTINE CLARK, OE DRYAD, VASHINGTON.

BOILER-CLEANER.

SPECIFICATION formingpart of Letters Patent No. 624,627, dated May 9,1899.

Application filed May 14, 1898. Serial No. 680,704. (Nomodel.)

adapted for permanent attachment to a steamboiler and provided with ablade to traverse the bottom or lowermost point of the surface of theboiler in order to enable the operator to draw accumulations of mud andother foreign matter toward a blow-olf, the blade being so constructedand mounted that during the forward or operative movement of theapparatus it is rigidly held in the proper position to scrape thesurface of the boiler, and during the return or backward movement it isadapted to swing or fold, so as not to push accumulations toward the endof the boiler which is remote from the blow-off.

Further objects and advantages of this invention will appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a side view of a boiler-cleaner constructedin accordance with my invention applied in 4the operative position to aboiler, the latter, with the guiding devices for the stem of thecleaner, being shown in longitudinal section. Fig. 2 is a detail View inperspective of the head of the cleaner, including the blade and thecontiguous portion of the stem. Fig. 3 is a similar View of the guiding,packing, and blow-off devices. Fig. 41s a detail sectional view, en-,larged, of the stufling-box and guide.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

In the head or tube-sheet 1 of a boiler or similar device from-which itis desired to remove accumulations of sediment, scale, dac.,

tube-sheet, while connected with the lateral arm 6 is a blow-off pipe 7,having a controlling valve or cock 8. Extending axially through thealined arms 3 and 4 of the coupling is a cleaner-stein 9, which may beheaded at its outer end, as shown at 10, and between which and the wallsof the guide leakage is prevented by a suitable stuffing 'or packing boxconsisting of a body portion 1l, threaded -into the bore of the arm 4and having a packin g-seat 1.2,an adjustable gland-cap 13,threaded uponthe exterior surface of the body portion 11 and having a suitable wrenchseat or grip 14, and a follower 15, fitted to slide in the packing-seat12 and tianged, as at 16,' for engagement by-an interior shoulder 17 ofthe gland-cap.

The stem 9 may be ofsectional construction, with a detachable member 9aconnected 'with the main orbody portion of the stem by journal portion19, terminating in a downturned stop-arm 20. lMounted upon the jour--nal portion 19 is a blade 21, having a curved operative or outer edgeto traverse the interior surface of the bottom of the boiler, and thestop-arm 20 is arranged in the path of the rearward-swinging movement ofsaid blade, whereby during the forward movement ot' the stem in thedirection indicated by the arrow in Fig. l said stop-arm holds the bladein operative position to properly scrape the bottom of the boiler anddraw accumulations of sediment and scale toward the point of outletprovided by the guide 2 and communicating valved blow-oft pipe 7, thediameter of the bore of the arm 3 of the coupling being larger than thatof the stem to provide a su flicient annular passage for al-r lowing thesedimentthus accumulated contiguous to the blow off to be forced outthrough the pipe 7 when the valve 8 is opened.

The means illustrated in the drawings forV adapted to swing forwardly tothe position' indicated in dotted lines in Fig. 1, whereby IOO ` bladeduring the forward movement of the it may pass freely over materialaccumulated upon the bottom of the boiler to avoid moving such materialtoward that end of the boiler which is remote from the blow-off. Theblade 2l extends laterally beyond the vertical planel of the stem 9,whereby during this backward movement of the cleanerupward-swingingmovement of the blade is limited by Contact with the stemin the same way that the rearward-swinging movement of the cleaner islimited by the stop-arm 20.

It will be understood from the foregoing description that an importantadvantage of the device embodying my invention resides in the fact thataccumulations of foreign matter upon the bottom of a boiler or otherlreceptacle (it being understood that the apparatusy lmay be applied tomud-drums and other devices of a like nature) may be drawn toward ablow-off or equivalent outlet, whereby when the valve of such outlet isopened such accumulations may be discharged from the re'- ceptaclewithout withdrawing all of the water therefrom. l

Furthermore, the apparatus embodying my invention forms a permanentattachment to vthe boiler or equivalent receptacle, and the operator bya suitable reciprocation of the stem is enabled to ascertain withoutreducing the steam whether there are accumulations upon the surface ofthe boiler which would necessitate blowing off or which, if allowed toremain, would beliable to cause the caking of the sediment and theburning out of the boiler-wall.

Other advantages of the construction disclosed will be apparent to thoseskilled in the art to which the invention belongs, and it will beunderstood that in adapting the same to receptacles of different kindsvarious changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the spirit orsacrificing any of the advantages of this invention.

I-Iaving described my invention, what I claim is l l. -A boiler-cleanerhaving a reciprocatory stem provided with a laterally-offset journalportion and an extension forming a pendent stop-arm, and a blade mountedfor swinging' movement upon said journal port-ion of the stem, saidstop-arm being in the path of the swinging movement of the blade in onedirection, substantially as specified.

2. A boiler-cleaner having a reciprocatory sion forming a journalportion and a further extension forming a pendent stop-arm, and

-a cleaning-blade mounted upon said journal portion, and extended inopposite directions beyond the vertical planes of the body portion ofthe stem and said stop-arm, whereby the forward and rearward swingingmovements 0f the blade are limited, respectively, by the stem and thestop-arm, substantially as speciiied.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence ot two witnesses.

VALENTINE CLARK.

Vitnesses ANDY HILLRUGER,

WILL D. LANGHORNE.

`stem provided with a perpendicular extenv

